Submission #624808

#	Time	Username	Problem	Language	Result	Execution time	Memory
624808		rm1729	마라톤 경주 (COCI14_utrka)	C++14	80 / 80	348 ms	23716 KiB

utrka

#include <bits/stdc++.h>
using namespace std;
#define int long long

void solve(){
    int n; cin >>n;
    map <string,vector <int>> si;
    map <int,string> is;

    for(int i=0; i<n; i++){
        string s;
        cin >>s;
        if(si[s].size()==0) si[s].push_back(0);
        si[s].push_back(i);
        si[s][0]++;
        is[i]=s;
    }

    vector <bool> check(n, true);
    for(int i=0; i<n-1; i++){
        string s;
        cin >>s;
        int k = si[s][si[s][0]];
        si[s][0]--;
        check[k]=false;
    }
    for(int i=0; i<n; i++){
        if(check[i]) cout <<is[i]; 
    }
}

signed main(){
    int t=1;// cin >>t;
    while(t--){
        solve();
    }
    return 0;
}

• Subtask 1: 80 / 80